Switch cabinet with a switch cabinet door having a door status sensor

Patent metadata

Field	Value
Publication number	US-11953644-B2
Application number	US-202017767100-A
Country	US
Kind code	B2
Filing date	Aug 13, 2020
Priority date	Oct 11, 2019
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

The invention relates to a switch cabinet with a switch cabinet door which closes the switch cabinet and has a door lock which can be actuated via a door handle, the switch cabinet door having a door status sensor which has a magnetic field sensor being adapted to distinguish an open state of the switch cabinet door from a closed state of the switch cabinet door by means of a detected magnetic field change, characterized in that at least the magnetic field sensor of the door status sensor is accommodated within the door handle in a region of the door handle which is magnetically permeable to the environment of the switch cabinet.

First claim

The invention claimed is:

1. A switch cabinet comprising a switch cabinet door which closes the switch cabinet and has a door lock which can be actuated via a door handle, the switch cabinet door having a door status sensor which has a magnetic field sensor being adapted to distinguish an open state of the switch cabinet door from a closed state of the switch cabinet door by means of a detected geomagnetic field change, wherein at least the magnetic field sensor of the door status sensor is accommodated in a region of the door handle within the door handle which is magnetically permeable to the environment of the switch cabinet and is coupled to the geomagnetic field via the magnetically permeable region, wherein the door handle has a ferromagnetic base, via which the door handle is placed on an outer side of the switch cabinet door, and a cover, between which and the base the door status sensor is arranged, the cover having the magnetically permeable region and/or consisting entirely of a magnetically permeable material.

2. The switch cabinet according to claim 1 , in which the door handle has a door handle body which consists of a ferromagnetic material and in which the door status sensor with the magnetic field sensor is accommodated, the door handle body having a receptacle which is closed off from the surroundings of the door handle via a magnetically permeable cover and in which at least the magnetic field sensor of the door status sensor is accommodated.

3. The switch cabinet according to claim 2 , in which the door handle has a ferromagnetic pivoting lever which can be pivoted with respect to the switch cabinet door and which, in an open position pivoted away from the switch cabinet door, exposes a receptacle of the door handle, in which at least the magnetic field sensor of the door status sensor is accommodated, and covers the receptacle when the pivoting lever is in a closed position pivoted against the switch cabinet door.

4. The switch cabinet according to claim 1 , in which the door handle is a radio handle for the contactless locking and/or unlocking of the door handle, for which purpose the door handle has a radio module arranged on a printed circuit board arranged inside the door handle, the door status sensor being arranged on the same printed circuit board as the radio module.

5. The switch cabinet according to claim 1 , wherein the door status sensor further comprises a single- or multi-axis acceleration sensor arranged to transfer the magnetic field sensor from a deactivated stand-by mode to an activated mode for detecting a magnetic field change when an acceleration is detected.

6. The switch cabinet according to claim 1 , wherein the magnetic field sensor comprises a reed switch.

7. The switch cabinet according to claim 1 , in which the switch cabinet has a permanent magnet or a magnetizable sensor counterpart at a cabinet opening which can be closed by the switch cabinet door, wherein the magnetic field sensor is remote from the permanent magnet or the magnetizable sensor counterpart in an open position of the switch cabinet door and is proximate to the permanent magnet or the magnetizable sensor counterpart in a closed position of the switch cabinet door.

8. The switch cabinet according to claim 1 , in which the magnetic field sensor comprises a Hall sensor and the switch cabinet comprises a magnetic or a magnetizable sensor counterpart, for example a switch cabinet frame, at a cabinet opening which can be closed by the switch cabinet door.

9. The switch cabinet according to claim 1 , in which the switch cabinet has a light reflector at a cabinet opening which can be closed by the switch cabinet door, and the door status sensor is a light-sensitive sensor, for example a photoelement, which converts light into electrical energy when light falls on it.

Assignees

• Rittal Gmbh & Co Kg

Inventors

• Laurösch Sven Michael
• Hain Markus

Classifications

• H02B1/38

  Hinged covers or doors · CPC title

• G01V3/081 Primary

  the magnetic field is produced by the objects or geological structures (characterised by the method of magnetic field measurement G01R33/00) · CPC title

• G01V8/10

  Detecting, e.g. by using light barriers (by reflection from the object G01S17/00) · CPC title

• H02B1/30 Primary

  Cabinet-type casings; Parts thereof or accessories therefor · CPC title

• E05B17/22 Primary

  Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators {(E05B39/00 - E05B45/00 take precedence)} · CPC title